From 3cf990c50d04b4a1aba4e0c1f5ed524752af970c Mon Sep 17 00:00:00 2001
From: Vivien Kraus <vivien@planete-kraus.eu>
Date: Fri, 28 Jan 2022 19:31:10 +0100
Subject: Add a guix.scm file

---
 guix.scm | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 guix.scm

diff --git a/guix.scm b/guix.scm
new file mode 100644
index 0000000..1034b68
--- /dev/null
+++ b/guix.scm
@@ -0,0 +1,79 @@
+(use-modules (guix packages)
+             (guix gexp)
+             (guix store)
+             (guix monads)
+             (guix derivations)
+             (gnu packages base)
+             (gnu packages compression)
+             (gnu packages emacs)
+             (gnu packages gettext)
+             (gnu packages guile)
+             (gnu packages guile-xyz)
+             (gnu packages version-control))
+
+(let ((local-repo
+       (local-file ".git" "disfluid.git" #:recursive? #t))
+      (bootstrap-script
+       (computed-file
+        "bootstrap.scm"
+        #~(call-with-output-file #$output
+            (lambda (port)
+              (write
+               '((@ (disfluid build bootstrap) main)
+                 #:emacs #$(file-append emacs "/bin/emacs")
+                 #:hall #$(file-append guile-hall "/bin/hall")
+                 #:git #$(file-append git "/bin/git")
+                 #:mkdir #$(file-append coreutils "/bin/mkdir")
+                 #:which #$(file-append which "/bin/which")
+                 #:autoreconf #$(file-append coreutils "/bin/true"))
+               port))))))
+  (run-with-store (open-connection)
+    (mlet %store-monad
+        ((guix.scm
+          (gexp->derivation
+              "guix.scm"
+            (with-imported-modules '((guix build utils))
+              #~(begin
+                  (use-modules (guix build utils))
+                  (set-path-environment-variable "PATH" '("bin") (list #$guile-3.0))
+                  (invoke #$(file-append git "/bin/git") "clone" #$local-repo ".")
+                  (delete-file "guix.scm")
+                  (setenv "HOME" (getcwd))
+                  (invoke #$(file-append guile-3.0 "/bin/guile") "-L" "." "-s" #$bootstrap-script)
+                  (invoke #$(file-append guile-hall "/bin/hall") "guix" "-x")
+                  (copy-file "guix.scm" #$output)))))
+         (snapshot.tar.gz
+          (gexp->derivation
+              "disfluid-snapshot.tar.gz"
+            (with-imported-modules '((guix build utils))
+              #~(begin
+                  (use-modules (guix build utils))
+                  (set-path-environment-variable "PATH" '("bin") (list #$gzip))
+                  (invoke #$(file-append git "/bin/git") "clone" #$local-repo ".")
+                  (invoke #$(file-append git "/bin/git") "archive" "-o" #$output "HEAD"))))))
+      (mlet %store-monad
+          ((built (built-derivations (list guix.scm snapshot.tar.gz))))
+        (let ((base (load (derivation->output-path guix.scm))))
+          (return
+           (package
+             (inherit base)
+             (arguments
+              `(#:phases
+                (modify-phases %standard-phases
+                  (replace 'bootstrap
+                    (lambda* (#:key inputs #:allow-other-keys)
+                      (chdir "..")
+                      (setenv "HOME" (getcwd))
+                      (invoke "guile" "./bootstrap"))))))
+             (native-inputs
+              `(,@(package-native-inputs base)
+                ("guile-hall" ,guile-hall)
+                ("emacs" ,emacs)
+                ("gettext" ,gnu-gettext)
+                ("autoconf-archive" ,autoconf-archive)))
+             (source (derivation->output-path snapshot.tar.gz))
+             (synopsis
+              (format #f "[SNAPSHOT]: ~a" (package-synopsis base)))
+             (description
+              (format #f "~a\n\nThis package version is @strong{not} released yet."
+                      (package-description base))))))))))
-- 
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